Walker still hasn't committed to serving a full second term, but Republicans at the convention didn't seem to care.

Walker faces re-election in November, but he's pondering a presidential run in 2016 and hasn't committed to serving a full second term as governor. If Walker were to leave office, Lt. Gov. Rebecca Kleefisch, a former TV news anchor, would take over.

Marinette County GOP Chairwoman Shirley Kaufman said Walker should commit to a full term, but other Republican leaders said Walker's hesitancy is understandable, and delegates gave him a standing ovation as he took the stage at the convention Saturday.

Walker made no mention of running for president, but did ask delegates to give him and Kleefisch four more years.

Ryan to Republicans: Time to unify

U.S. Rep. Paul Ryan told delegates at the convention that the party must unify.

Ryan spoke as delegates prepared to debate a tea party resolution affirming Wisconsin's right to secede. GOP leaders want to defeat it.

Ryan didn't mention the resolution but called on the party to unify so it can win elections.

Ryan complained about Lois Lerner, a former Internal Revenue Service official who has refused to answer questions about agents singling out tea party tax-exempt applications for scrutiny. He also promised answers about the Benghazi attack that left four Americans dead in 2012.

House Speaker John Boehner said Friday he would create a committee to investigate the attack.

Ryan was the 2012 Republican vice presidential nominee and is considered a possible presidential contender in 2016.

Petri, Van Hollen bid farewell

U.S. Rep. Tom Petri said goodbye at the convention.

Petri, a moderate, has held the 6th Congressional District seat for 35 years. He decided in April to retire rather than face a primary challenge this fall from state Sen. Glenn Grothman, one of the most conservative lawmakers in the Legislature.

Sen. Joe Leibham, a Sheboygan Republican, and Rep. Duey Stroebel, a Saukville Republican, have since jumped into the race. So have Democrats Gary Wetzel and Mark Harris.

Petri sounded broad themes during his farewell speech at the convention Saturday. He called on Republicans to embrace diversity, noting the party was founded by people of varied political stripes. He left the stage to a standing ovation.

Outgoing Attorney General J.B. Van Hollen also bid farewell through a video at the convention.

Van Hollen announced in 2013 he would not seek re-election this fall. Ismael Ozanne, Susan Happ and Jon Richards all are vying for the Democratic nomination. Brad Schimel is the only Republican in the race.

Van Hollen apologized for not appearing in person but promised he would attend the convention's prayer breakfast on Sunday. He didn't offer any explanation for his absence, and a state Justice Department spokeswoman declined to comment.

Van Hollen told delegates he has worked to protect their freedom and uphold the rule of law. He implored delegates to support Schimel.